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1.发明授权
公开(公告)号：US6128169A
公开(公告)日：2000-10-03
申请号：US993745
申请日：1997-12-19
CPC分类号： G01R31/12 , H02H1/0015 , H02H3/334 , H02H1/0038
摘要： An arc fault detector comprised as a stand alone unit and in combination with a ground fault circuit interrupter (GFCI) functions to provide protection from potentially dangerous arc fault conditions. When combined with a GFCI, the combination arc fault/ground fault circuit interrupter (AFCI/GFCI) provides protection from both arc fault and ground fault conditions. A single transformer is used to detect faults between neutral and ground and arc faults. An impedance splits the current flow into two portions so as to generate differential current proportional to the current flowing through the conductors. An early arcing detector periodically tests the AC line for high impedance between the device and a main breaker panel. The AFCI/GFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication circuitry to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
摘要翻译： 包括作为独立单元并与接地故障断路器（GFCI）组合的电弧故障检测器用于提供防止潜在危险的电弧故障条件的保护。 当与GFCI组合时，组合电弧故障/接地故障电路断路器（AFCI / GFCI）可提供电弧故障和接地故障条件的保护。 单个变压器用于检测中性线和地线与电弧故障之间的故障。 阻抗将电流分成两部分，以便产生与流过导体的电流成比例的差分电流。 早期电弧检测器周期性地测试AC线路在器件和主断路器面板之间的高阻抗。 AFCI / GFCI设备检测AC线频率和与电弧相关的高频。 交流线路频率和高频电弧信号的平均值和瞬时值都被处理以产生电弧故障信号。 该装置允许电弧检测器区分由典型的家用电器和设备产生的破坏性高电平电弧和低电平电弧。 这有助于减少错误跳闸的发生。 该设备还包括定时器电路，其允许用户临时禁用电弧检测器，并且包括通信电路，以允许设备将电弧故障的发生和位置通知给集中监控站。
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公开(公告)号：US06639769B2
公开(公告)日：2003-10-28
申请号：US10120462
申请日：2002-04-11
IPC分类号： H02H300
CPC分类号： H02H1/043 , H02H1/0015 , H02H3/334
摘要： An arc fault circuit interrupter (AFCI) device functions to provide protection from potentially dangerous arc faults. The arc fault detector can be used stand alone or in combination with circuit interrupting devices such as IDCIs and ALCIs. The AFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The trip mechanism of the device trips on the occurrence of either an arc fault or a ground fault. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
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3.发明授权公开(公告)号：US06407893B1
公开(公告)日：2002-06-18
申请号：US09677801
申请日：2000-10-02
IPC分类号： H02H908
CPC分类号： G01R31/12 , H02H1/0015 , H02H1/0038 , H02H3/334
摘要： An arc fault detector comprised as a stand alone unit and in combination with a ground fault circuit interrupter (GFCI) functions to provide protection from potentially dangerous arc fault conditions. When combined with a GFCI, the combination arc fault/ground fault circuit interrupter (AFCI/GFCI) provides protection from both arc fault and ground fault conditions. A single transformer is used to detect faults between neutral and ground and arc faults. An impedance splits the current flow into two portions so as to generate differential current proportional to the current flowing through the conductors. An early arcing detector periodically tests the AC line for high impedance between the device and a main breaker panel. The AFCI/GFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
摘要翻译： 包括作为独立单元并与接地故障断路器（GFCI）组合的电弧故障检测器用于提供防止潜在危险的电弧故障条件的保护。 当与GFCI组合时，组合电弧故障/接地故障电路断路器（AFCI / GFCI）可提供电弧故障和接地故障条件的保护。 单个变压器用于检测中性线和地线与电弧故障之间的故障。 阻抗将电流分成两部分，以便产生与流过导体的电流成比例的差分电流。 早期电弧检测器周期性地测试AC线路在器件和主断路器面板之间的高阻抗。 AFCI / GFCI设备检测AC线频率和与电弧相关的高频。 交流线路频率和高频电弧信号的平均值和瞬时值都被处理以产生电弧故障信号。 该装置允许电弧检测器区分由典型的家用电器和设备产生的破坏性高电平电弧和低电平电弧。 这有助于减少错误跳闸的发生。 该设备还包括定时器电路，其允许用户临时禁用电弧检测器，并且包括通信装置，以允许设备将电弧故障的发生和位置通信到集中监视站。
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公开(公告)号：US06433978B1
公开(公告)日：2002-08-13
申请号：US09612904
申请日：2000-07-10
IPC分类号： H02H908
CPC分类号： H02H1/043 , H02H1/0015 , H02H3/334
摘要： An arc fault circuit interrupter (AFCI) device functions to provide protection from potentially dangerous arc faults. The arc fault detector can be used stand alone or in combination with circuit interrupting devices such as IDCIs and ALCIs. The AFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The trip mechanism of the device trips on the occurrence of either an arc fault or a ground fault. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
摘要翻译： 电弧故障断路器（AFCI）设备用于提供防止潜在危险电弧故障的保护。 电弧故障检测器可以独立使用或与电路中断设备（如IDCI和ALCI）组合使用。 AFCI设备检测AC线频率和与电弧相关的高频。 交流线路频率和高频电弧信号的平均值和瞬时值都被处理以产生电弧故障信号。 发生电弧故障或接地故障时，设备跳闸机制跳闸。 该装置允许电弧检测器区分由典型的家用电器和设备产生的破坏性高电平电弧和低电平电弧。 这有助于减少错误跳闸的发生。 该设备还包括定时器电路，其允许用户临时禁用电弧检测器，并且包括通信装置，以允许设备将电弧故障的发生和位置通信到集中监视站。
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公开(公告)号：US06339525B1
公开(公告)日：2002-01-15
申请号：US09410275
申请日：1999-09-30
IPC分类号： H02H300
CPC分类号： H02H1/0015 , H01H2300/03 , H02H3/331 , H02H3/335 , Y02B70/3241 , Y04S20/227
摘要： An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault circuit interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes line side and load side pickup coils to distinguish between arc faults occurring on the line or load side. An arc fault circuit interrupter (AFCI) circuitry portion of the device shares components from the GFCI circuitry portion, and utilizes the electromechanical power carrying portion of the GFCI, including AC line disconnect circuitry and a power supply. The AFCI employs quantitative detection using variable gain control in combination with either a load disconnect or audible/visual alarm indication. The device also includes a timer circuit, which permits the user to temporarily inhibit or disable the arc detection, and selective frequency filtering permitting arc detection in the presence of power line carrier communications.
摘要翻译： 作为独立装置的电弧故障检测器或与诸如接地故障电路断续器（GFCI）的电路中断装置组合，可以防止潜在的危险电弧故障状况。 该装置利用线路侧和负载侧拾取线圈来区分发生在线路或负载侧的电弧故障。 设备的电弧故障电路断路器（AFCI）电路部分与GFCI电路部分共享组件，并且利用GFCI的机电载送部分，包括AC线断开电路和电源。 AFCI使用可变增益控制与负载断开或听觉/视觉报警指示结合使用定量检测。 该装置还包括定时器电路，其允许用户临时禁止或禁用电弧检测，并且在存在电力线载波通信的情况下允许电弧检测的选择性频率滤波。
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公开(公告)号：US6088205A
公开(公告)日：2000-07-11
申请号：US995130
申请日：1997-12-19
CPC分类号： H02H1/043 , H02H1/0015 , H02H3/334
摘要： An arc fault circuit interrupter (AFCI) device functions to provide protection from potentially dangerous arc faults. The arc fault detector can be used stand alone or in combination with circuit interrupting devices such as IDCIs and ALCIs. The AFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The trip mechanism of the device trips on the occurrence of either an arc fault or a ground fault. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
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公开(公告)号：US5963406A
公开(公告)日：1999-10-05
申请号：US994772
申请日：1997-12-19
CPC分类号： H02H1/0015 , H01H2300/03 , H02H3/331 , H02H3/335 , Y02B70/3241 , Y04S20/227
摘要： An arc fault detector embodied as both a stand alone device and in combination with a circuit interrupting device such as a ground fault circuit interrupter (GFCI) functions to provide protection from potentially dangerous arc fault conditions. The device utilizes line side and load side pickup coils to permit distinguishing between arc faults occurring on the line side and the load side of the device. The arc fault circuit interrupter (AFCI) circuitry portion of the device shares components from the GFCI circuitry portion as an integral part of its functionality. The AFCI utilizes the electromechanical power carrying, portion of the GFCI, including the AC line disconnect circuitry, the power supply and the physical housing. In addition, the AFCI employs quantitative detection using variable gain control in combination with either a load disconnect or audible/visual alarm indication. The device also includes a timer circuit, which permits the user to temporarily inhibit or disable the arc detection, and selective frequency filtering permitting arc detection in the presence of power line carrier communications. In addition, the device includes communication means to permit the device to communicate the occurrence and location of an arc fault to a centralized monitoring station.
摘要翻译： 实现为独立装置并与诸如接地故障电路断续器（GFCI）的电路中断装置组合的电弧故障检测器用于提供防止潜在危险的电弧故障条件的保护。 该装置利用线路侧和负载侧拾取线圈来区分线路侧和设备的负载侧发生的电弧故障。 设备的电弧故障电路断路器（AFCI）电路部分将来自GFCI电路部分的部件作为其功能的组成部分。 AFCI利用GFCI的部分机电电力，包括交流线路断开电路，电源和物理外壳。 此外，AFCI采用可变增益控制与负载断开或听觉/视觉报警指示相结合的定量检测。 该装置还包括定时器电路，其允许用户临时禁止或禁用电弧检测，并且在存在电力线载波通信的情况下允许电弧检测的选择性频率滤波。 另外，该设备包括通信装置，以允许设备将电弧故障的发生和位置通知给集中监控站。
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公开(公告)号：US4054868A
公开(公告)日：1977-10-18
申请号：US685523
申请日：1976-05-12
申请人： William J. Rose
发明人： William J. Rose
CPC分类号： G09G3/14 , G10H1/0008 , G10H2220/261
摘要： A small-sized lightweight portable hand-held housing is provided with elements for visually displaying selected combinations of information quantities such as musical notes of scales and chords. The displays are operated by signals from programmable read only memory elements in the housing. Manually operable selector elements such as push button switches on the housing are used to select particular combinations to be displayed. A circuit including digital logic elements converts manual operation of a selector element into operation of appropriate memory elements to activate the displays.
摘要翻译： 小尺寸轻便便携式手持式外壳设置有用于可视地显示诸如音阶和和弦的音符的信息量的选定组合的元件。 显示器由外壳中可编程只读存储器元件的信号操作。 手动操作的选择器元件，例如外壳上的按钮开关用于选择要显示的特定组合。 包括数字逻辑元件的电路将选择器元件的手动操作转换成合适的存储器元件的操作以激活显示器。
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公开(公告)号：US5673009A
公开(公告)日：1997-09-30
申请号：US509419
申请日：1995-07-31
申请人： Daniel E. Klas , William J. Rose
发明人： Daniel E. Klas , William J. Rose
IPC分类号： H01R13/6469 , H01R13/6477 , H01R24/00 , H05K1/02 , H05K1/11 , H03H7/00 , H04M1/74
CPC分类号： H05K1/0228 , H01R13/6469 , H01R13/6477 , H05K1/117 , H05K2201/09245 , H05K2201/097 , H05K2201/10189 , Y10S439/941
摘要： A connector for communications systems has four input terminals and four output terminals, each arranged in an ordered array. A circuit electrically couples each input terminal to the respective output terminal and cancels crosstalk induced across the adjacent connector terminals. The circuit includes four conductive paths between the respective pairs of terminals. The first and third paths are in relatively close proximity and are substantially spaced from the second and fourth paths. The second and fourth paths are in relatively close proximity.
摘要翻译： 用于通信系统的连接器具有四个输入端子和四个输出端子，每个输出端子以有序阵列布置。 电路将每个输入端子电耦合到相应的输出端子，并且消除在相邻的连接器端子之间引起的串扰。 该电路包括在各对端子之间的四个导电路径。 第一和第三路径相对靠近并且与第二和第四路径基本间隔开。 第二和第四路径相对靠近。
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10.发明授权Method and device for producing a substantially continuous composite video signal 失效用于产生基本上连续的复合视频信号的方法和装置
公开(公告)号：US5023727A
公开(公告)日：1991-06-11
申请号：US420827
申请日：1989-10-12
IPC分类号： G09B5/06 , G11B15/00 , G11B15/02 , G11B19/02 , G11B27/032 , G11B27/10 , G11B27/30 , G11B27/32 , H04N5/765
CPC分类号： G11B27/3054 , G09B5/065 , G11B15/005 , G11B15/023 , G11B19/02 , G11B27/032 , G11B27/102 , G11B27/328 , H04N5/765 , G11B2220/90
摘要： This invention relates to methods for forming a substantially continuous composite video signal. A method for forming a composite signal comprises providing a video signal preprogrammed with data, reading or decoding and storing the data, determining where to combine a video field assembled from the data with the video signal, and combining the video field with the video signal by switching between the two. A method for forming a substantially continuous video signal comprises providing a video signal preprogrammed with data, reading or decoding and storing the data, receiving input indicating a desired video signal segment, determining the gap before locating the desired video signal segment, and filling the gap with a video segment assembled from the data. In another aspect, this invention also relates to a device for carrying out the methods of the invention.
摘要翻译： 本发明涉及形成基本上连续的复合视频信号的方法。 一种形成复合信号的方法包括提供预编程有数据，读取或解码和存储数据的视频信号，确定将从数据组合的视频场与视频信号组合在一起，以及通过以下方式组合视频场与视频信号 两者之间切换。 用于形成基本上连续的视频信号的方法包括提供预编程有数据，读取或解码和存储数据的视频信号，接收指示期望视频信号段的输入，在定位所需视频信号段之前确定间隙，以及填补间隙 具有从数据组装的视频段。 在另一方面，本发明还涉及用于实施本发明的方法的装置。
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